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All results from a given calculation for C6H8 (1,4-Cyclohexadiene)

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-233.109370
Energy at 298.15K-233.117841
Nuclear repulsion energy216.616001
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3102 3084 0.00      
2 Ag 2913 2896 0.00      
3 Ag 1716 1706 0.00      
4 Ag 1381 1373 0.00      
5 Ag 1178 1171 0.00      
6 Ag 856 852 0.00      
7 Ag 524 521 0.00      
8 Au 1160 1153 0.00      
9 Au 957 951 0.00      
10 Au 371 369 0.00      
11 B1g 3077 3060 0.00      
12 B1g 1360 1352 0.00      
13 B1g 1298 1291 0.00      
14 B1g 1023 1017 0.00      
15 B1g 561 558 0.00      
16 B1u 2926 2909 43.15      
17 B1u 939 933 16.13      
18 B1u 605 602 53.64      
19 B1u 117 117 1.17      
20 B2g 2927 2910 0.00      
21 B2g 967 961 0.00      
22 B2g 924 918 0.00      
23 B2g 395 393 0.00      
24 B2u 3100 3082 71.69      
25 B2u 1670 1661 8.05      
26 B2u 1333 1325 0.01      
27 B2u 1128 1122 0.01      
28 B2u 938 932 0.04      
29 B3g 1169 1162 0.00      
30 B3g 697 693 0.00      
31 B3u 3078 3060 16.52      
32 B3u 2915 2898 94.48      
33 B3u 1387 1379 7.41      
34 B3u 1380 1372 0.98      
35 B3u 937 932 0.06      
36 B3u 887 882 14.36      

Unscaled Zero Point Vibrational Energy (zpe) 25948.3 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 25797.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBE/cc-pVDZ
ABC
0.17091 0.16126 0.08559

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.504 0.000 0.000
C2 -1.504 0.000 0.000
C3 -0.673 1.256 0.000
C4 0.673 1.256 0.000
C5 -0.673 -1.256 0.000
C6 0.673 -1.256 0.000
H7 1.216 -2.216 0.000
H8 -1.216 -2.216 0.000
H9 1.216 2.216 0.000
H10 -1.216 2.216 0.000
H11 2.194 0.000 0.879
H12 -2.194 0.000 0.879
H13 2.194 0.000 -0.879
H14 -2.194 0.000 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.00862.51381.50622.51381.50622.23443.50882.23443.50881.11683.80101.11683.8010
C23.00861.50622.51381.50622.51383.50882.23443.50882.23443.80101.11683.80101.1168
C32.51381.50621.34632.51222.85023.95273.51412.11921.10283.25092.15913.25092.1591
C41.50622.51381.34632.85022.51223.51413.95271.10282.11922.15913.25092.15913.2509
C52.51381.50622.51222.85021.34632.11921.10283.95273.51413.25092.15913.25092.1591
C61.50622.51382.85022.51221.34631.10282.11923.51413.95272.15913.25092.15913.2509
H72.23443.50883.95273.51412.11921.10282.43264.43165.05542.57624.16052.57624.1605
H83.50882.23443.51413.95271.10282.11922.43265.05544.43164.16052.57624.16052.5762
H92.23443.50882.11921.10283.95273.51414.43165.05542.43262.57624.16052.57624.1605
H103.50882.23441.10282.11923.51413.95275.05544.43162.43264.16052.57624.16052.5762
H111.11683.80103.25092.15913.25092.15912.57624.16052.57624.16054.38751.75714.7263
H123.80101.11682.15913.25092.15913.25094.16052.57624.16052.57624.38754.72631.7571
H131.11683.80103.25092.15913.25092.15912.57624.16052.57624.16051.75714.72634.3875
H143.80101.11682.15913.25092.15913.25094.16052.57624.16052.57624.72631.75714.3875

picture of 1,4-Cyclohexadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 123.494 C1 C4 H9 116.997
C1 C6 C5 123.494 C1 C6 H7 116.997
C2 C3 C4 123.494 C2 C3 H10 116.997
C2 C5 C6 123.494 C2 C5 H8 116.997
C3 C2 C5 113.012 C3 C2 H12 109.918
C3 C2 H14 109.918 C3 C4 H9 119.509
C4 C1 C6 113.012 C4 C1 H11 109.918
C4 C1 H13 109.918 C4 C3 H10 119.509
C5 C2 H12 109.918 C5 C2 H14 109.918
C5 C6 H7 119.509 C6 C1 H11 109.918
C6 C1 H13 109.918 C6 C5 H8 119.509
H11 C1 H13 103.756 H12 C2 H14 103.756
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.036      
2 C 0.036      
3 C -0.047      
4 C -0.047      
5 C -0.047      
6 C -0.047      
7 H -0.018      
8 H -0.018      
9 H -0.018      
10 H -0.018      
11 H 0.047      
12 H 0.047      
13 H 0.047      
14 H 0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.422 0.000 0.000
y 0.000 -35.889 0.000
z 0.000 0.000 -38.985
Traceless
 xyz
x 4.015 0.000 0.000
y 0.000 0.315 0.000
z 0.000 0.000 -4.329
Polar
3z2-r2-8.659
x2-y22.467
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.726 0.000 0.000
y 0.000 9.514 0.000
z 0.000 0.000 5.519


<r2> (average value of r2) Å2
<r2> 146.337
(<r2>)1/2 12.097